KR20110072008A - Lng storage tank supporting structure using insulation and elastic body - Google Patents

Lng storage tank supporting structure using insulation and elastic body Download PDF

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Publication number
KR20110072008A
KR20110072008A KR1020090128766A KR20090128766A KR20110072008A KR 20110072008 A KR20110072008 A KR 20110072008A KR 1020090128766 A KR1020090128766 A KR 1020090128766A KR 20090128766 A KR20090128766 A KR 20090128766A KR 20110072008 A KR20110072008 A KR 20110072008A
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South Korea
Prior art keywords
storage tank
lng storage
elastic body
tank
lng
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KR1020090128766A
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Korean (ko)
Inventor
박진수
민계식
김영범
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현대중공업 주식회사
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Priority to KR1020090128766A priority Critical patent/KR20110072008A/en
Priority to CN2010106204396A priority patent/CN102101563B/en
Publication of KR20110072008A publication Critical patent/KR20110072008A/en

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B25/00—Load-accommodating arrangements, e.g. stowing, trimming; Vessels characterised thereby
    • B63B25/02—Load-accommodating arrangements, e.g. stowing, trimming; Vessels characterised thereby for bulk goods
    • B63B25/08—Load-accommodating arrangements, e.g. stowing, trimming; Vessels characterised thereby for bulk goods fluid
    • B63B25/12—Load-accommodating arrangements, e.g. stowing, trimming; Vessels characterised thereby for bulk goods fluid closed
    • B63B25/16—Load-accommodating arrangements, e.g. stowing, trimming; Vessels characterised thereby for bulk goods fluid closed heat-insulated
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D90/00—Component parts, details or accessories for large containers
    • B65D90/02—Wall construction
    • B65D90/06—Coverings, e.g. for insulating purposes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C1/00—Pressure vessels, e.g. gas cylinder, gas tank, replaceable cartridge
    • F17C1/12—Pressure vessels, e.g. gas cylinder, gas tank, replaceable cartridge with provision for thermal insulation
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2203/00—Vessel construction, in particular walls or details thereof
    • F17C2203/03—Thermal insulations
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2205/00—Vessel construction, in particular mounting arrangements, attachments or identifications means
    • F17C2205/01—Mounting arrangements
    • F17C2205/0153—Details of mounting arrangements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2221/00—Handled fluid, in particular type of fluid
    • F17C2221/03—Mixtures
    • F17C2221/032—Hydrocarbons
    • F17C2221/033—Methane, e.g. natural gas, CNG, LNG, GNL, GNC, PLNG
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2223/00—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel
    • F17C2223/01—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel characterised by the phase
    • F17C2223/0146—Two-phase
    • F17C2223/0153—Liquefied gas, e.g. LPG, GPL
    • F17C2223/0161—Liquefied gas, e.g. LPG, GPL cryogenic, e.g. LNG, GNL, PLNG
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2225/00—Handled fluid after transfer, i.e. state of fluid after transfer from the vessel
    • F17C2225/01—Handled fluid after transfer, i.e. state of fluid after transfer from the vessel characterised by the phase
    • F17C2225/0146—Two-phase
    • F17C2225/0153—Liquefied gas, e.g. LPG, GPL
    • F17C2225/0161—Liquefied gas, e.g. LPG, GPL cryogenic, e.g. LNG, GNL, PLNG
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2270/00—Applications
    • F17C2270/01—Applications for fluid transport or storage
    • F17C2270/0102—Applications for fluid transport or storage on or in the water
    • F17C2270/0105—Ships

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Ocean & Marine Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Filling Or Discharging Of Gas Storage Vessels (AREA)

Abstract

PURPOSE: An LNG storage tank supporting structure using an elastic body and an insulator is provided to prevent the movement of LNG storage tank by fixing the tank inside a base part using the elastic body. CONSTITUTION: An LNG storage tank supporting structure comprises a base part(40), an elastic body(30), and an insulating member(31). The LNG storage tank is concavely on the base part in order to install the LNG storage tank on the base part. The elastic body is installed in the inner circumference of the base part. The elastic body is relaxed according to the contraction of the LNG storage tank, in order to prevent the movement of the LNG storage tank. The insulating member is formed in elastic body. The insulating member is contacted to the outer circumference of the LNG storage tank to insulate the LNG storage tank.

Description

탄성체와 단열재를 이용한 ＬＮＧ저장탱크의 지지구조체{LNG storage tank supporting structure using insulation and elastic body}LNG storage tank supporting structure using insulation and elastic body

본 발명은 탄성체와 단열재를 이용한 LNG 저장탱크의 지지구조체에 관한 것으로, 오목하게 형성되는 베이스부의 표면에 설치되는 탄성체가 LNG 저장탱크의 수축에 의해 이완되면서 LNG 저장탱크를 받쳐줌과 동시에 측면을 감싸면서 지지 고정해주는 탄성체와 단열재를 이용한 LNG 저장탱크의 지지구조체에 관한 것이다.The present invention relates to a support structure of an LNG storage tank using an elastic body and a heat insulating material, the elastic body is installed on the surface of the concave base portion is relaxed by the contraction of the LNG storage tank while supporting the LNG storage tank and at the same time wrapped around the side The present invention relates to a support structure of an LNG storage tank using an elastic body and a heat insulating material.

일반적으로 LNG 운반선에 탑재되는 구형 LNG 저장탱크는 선박의 조종시선을 방해 하지 않은 범위 내에서 보다 많은 LNG를 적재할 수 있도록 설계되어야 한다. In general, older LNG storage tanks mounted on LNG carriers should be designed to allow the loading of more LNG within a range that does not interfere with the ship's view.

이러한 LNG 저장탱크(10a)는 도 1 에서와 반구형태의 제1탱크부(11) 및 제2탱크부(12)로 구성되고 선체에 오목하게 형성되는 베이스부(40)에 지지스커트(20)를 통해 고정된다.The LNG storage tank 10a is composed of the first tank part 11 and the second tank part 12 having a hemispherical shape in FIG. 1 and the support skirt 20 in the base part 40 formed in the hull. Is fixed through.

이러한 LNG 저장탱크(10a)는 제1탱크부(11) 및 제2탱크부(12) 사이에 원통형태의 연장부를 설치하게 확장하게 되며 이러한 LNG 저장탱크는 확장방향에 따라 수직연장 LNG 저장탱크와, 수평연장 LNG 저장탱크로 구분된다.The LNG storage tank (10a) is extended to install an extension of the cylindrical form between the first tank portion 11 and the second tank portion 12, and such LNG storage tank is a vertically extended LNG storage tank and It is divided into horizontally extended LNG storage tank.

종래의 수평연장 LNG 저장탱크(10b)는 도 2 에서와 같이 좌, 우 서로 대칭되고 반구형태로 형성되는 제1탱크부(11) 및 제2탱크부와(12), 상기 제1,2탱크부(11)(12)의 사이에 설치되어 LNG저장용량이 증대되도록 하는 수평연장탱크부(13)로 이루어지고, 이러한 수평연장 LNG 저장탱크(10)는 지지스커트(20)를 통해 선체에 오목하게 형성되는 베이스부(40)에 고정된다.Conventional horizontally extending LNG storage tank (10b) is the first tank part 11 and the second tank part 12 and the first and second tanks symmetrical to each other and formed in a hemispherical shape, as shown in Figure 2 It is made up of the horizontal extension tank unit 13 is installed between the sections 11, 12 to increase the LNG storage capacity, this horizontal extension LNG storage tank 10 is concave to the hull through the support skirt (20). It is fixed to the base portion 40 is formed.

상기 수평연장 LNG 저장탱크(10b)는 수평연장탱크부(13)가 수축시 열변형에 의해 응력이 집중되는 문제점과 수평연장탱크부(13)의 굽힘에 의한 과도한 응력이 발생되는 문제점이 있으며, 이러한 응력집중현상을 해결하기 위하여 연장부의 두께를 과도하게 두껍게 해야 하기 때문에 생산비가 증가되어 원가가 상승되어 현실적으로 적용하기 에는 매우 어려운 문제점이 있다.The horizontal extension LNG storage tank (10b) has a problem that the stress is concentrated by the heat deformation when the horizontal extension tank 13 is contracted and there is a problem that excessive stress caused by bending of the horizontal extension tank 13, In order to solve such stress concentration phenomenon, the thickness of the extension part must be excessively thick, so that the production cost is increased and the cost is increased, which is very difficult to apply in reality.

상기와 같은 문제점을 해결하기 위한 본 발명의 목적은, LNG 저장탱크를 베이스부에 탄성체와 단열재를 이용하여 받쳐줌과 동시에 수평연장 LNG 저장탱크의 수축 및 팽창에 유연하게 대응되면서 수평연장 LNG 저장탱크를 감싸 견고하기 지지할 수 있도록 하는 탄성체와 단열재를 이용한 LNG 저장탱크의 지지구조체를 제공함에 있다.An object of the present invention for solving the above problems, while supporting the LNG storage tank using the elastic body and the insulating material in the base portion and at the same time flexibly respond to the contraction and expansion of the horizontally extended LNG storage tank horizontally extended LNG storage tank The present invention provides a support structure for an LNG storage tank using an elastic body and a heat insulating material to support and firmly wrap.

상기한 바와 같은 목적을 달성하고 종래의 결점을 제거하기 위한 과제를 수행하는 본 발명은 LNG 저장탱크가 설치될 수 있도록 선체상에 오목하게 형성되는 베이스부; 상기 베이스부의 내주면에 설치되어 베이스부에 탑재되는 LNG 저장탱크의 수축에 따라 이완되면서 LNG 저장탱크의 유동을 방지하고 지지해주는 탄성체; 상기 탄성체상에 형성되고 LNG 저장탱크의 외주면에 닿아 LNG 저장탱크를 단열시켜주는 단열재; 를 포함하여 구성되는 것을 특징으로 한다.The present invention to achieve the object as described above and to perform the problem for removing the conventional drawbacks is a base portion which is formed concave on the hull so that the LNG storage tank can be installed; An elastic body installed on the inner circumferential surface of the base part and relaxed according to the contraction of the LNG storage tank mounted on the base part to prevent and support the flow of the LNG storage tank; An insulating material formed on the elastic body and insulating the LNG storage tank by contacting an outer circumferential surface of the LNG storage tank; And a control unit.

또한 상기 단열재의 반경은 상기 LNG 저장탱크의 반경보다 작게 형성하여 LNG 저장탱크가 탄성체의 수축에 의해 베이스부에 억지끼움형태로 설치되는 것을 특징으로 한다.In addition, the radius of the heat insulating material is formed smaller than the radius of the LNG storage tank is characterized in that the LNG storage tank is installed in the base portion in the form of interference fit by the contraction of the elastic body.

상기 탄성체는, 탄성중합체, 고탄성체, 고점탄성체 중 선택된 어느 하나인 것을 특징으로 한다.The elastic body is characterized in that any one selected from an elastomer, a high elastic body, a high viscoelastic body.

이상에서 설명한 바와 같이 본 발명에 의하면, LNG 저장탱크의 수축 및 팽창시 탄성체가 유연하게 대응하면서 LNG 저장탱크를 감싸 베이스부에 내부에 고정시켜 줌으로써 LNG 저장탱크의 운동을 방지하고 안정적으로 지지해주고, 탄성체 및 단열재를 통해 수평연장 LNG 저장탱크의 외면을 전체적으로 받쳐 지지해줌으로써 특히 선박에 탑재된 구형탱크가 수평연장 LNG 저장탱크의 경우 수평연결탱크부와 제1,2탱크부의 접합부분에 가해지는 응력집중현상을 완화시켜 수평연장탱크부의 두께를 줄여줄 수 있는 매우 유용한 발명이다.As described above, according to the present invention, the elastic body flexibly responds to the contraction and expansion of the LNG storage tank, while preventing the movement of the LNG storage tank and stably supporting the LNG storage tank. By supporting the outer surface of horizontally extended LNG storage tank through elastic body and heat insulator, stress is applied to the joint part of horizontal connection tank and 1st and 2nd tank in the case of horizontally extended LNG storage tank. It is a very useful invention that can reduce the thickness of the horizontal extension tank by reducing the concentration phenomenon.

이하 본 발명의 실시 예인 구성과 그 작용을 첨부도면에 연계시켜 상세히 설명하면 다음과 같다. 또한 본 발명을 설명함에 있어서, 관련된 공지기능 혹은 구성에 대한 구체적인 설명이 본 발명의 요지를 불필요하게 흐릴 수 있다고 판단되는 경우 그 상세한 설명은 생략한다.Hereinafter, the configuration and the operation of the embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the following description of the present invention, a detailed description of known functions and configurations incorporated herein will be omitted when it may make the subject matter of the present invention rather unclear.

도 3 은 본 발명에 의한 일실시예에 의한 LNG 저장탱크의 탑재 전 상태를 나타낸 예시도, 도 4 는 본 발명의 일실시예에 의한 LNG 저장탱크의 탑재 상태를 나타낸 예시도로서, 도면에서와 같이 LNG 저장탱크가 설치될 수 있도록 선박에 오목하게 형성되어 있는 베이스부와, 상기 베이스부(40)의 내주면에 설치되어 베이스부(40)에 설치되는 LNG 저장탱크(10a)의 수축에 따라 이완되면서 LNG 저장탱크(10a)의 유동을 방지하고 지지해주는 탄성체(30)와, 상기 탄성체(30)상에 형성되 고 LNG 저장탱크(10a)의 외주면에 닿아 LNG 저장탱크(10a)를 단열시켜주는 단열재(31)를 포함하여 구성된다.3 is an exemplary view showing a state before loading the LNG storage tank according to an embodiment of the present invention, Figure 4 is an exemplary view showing a mounting state of the LNG storage tank according to an embodiment of the present invention, As described above, the base part is formed concave in the vessel so that the LNG storage tank can be installed, and is relaxed in accordance with the contraction of the LNG storage tank (10a) is installed on the inner peripheral surface of the base portion 40 is installed in the base portion 40 While insulating the elastic body 30 to prevent and support the flow of the LNG storage tank (10a), and formed on the elastic body 30 and in contact with the outer peripheral surface of the LNG storage tank (10a) to insulate the LNG storage tank (10a) It comprises a 31.

상기 탄성체(30)는 LNG 저장탱크(10a)를 안전하게 지지할 수 있는 두께로 형성하고, 상기 탄성체(30)에 부착된 단열재(31)는 LNG 저장탱크(10a)의 반경보다 작게 형성하여 LNG 저장탱크(10a)가 탄성체(30)의 수축에 의해 베이스부(40)에 억지끼움형태로 설치되도록 한다.The elastic body 30 is formed to a thickness that can safely support the LNG storage tank (10a), the heat insulating material 31 attached to the elastic body 30 is formed smaller than the radius of the LNG storage tank (10a) to store LNG Tank 10a is to be installed in the interference fit form on the base portion 40 by the contraction of the elastic body 30.

또한 탄성체(30)는 탄성중합체, 고탄성체, 고점탄성체로 구성될 수 있으며 외력이 가해질 경우 변형되고 외력을 제거할 경우 원래의 모양으로 되돌아오는 성질이 있어 고 중량의 LNG 저장탱크(10a)를 안전하게 지지해줄 수 있게 된다.In addition, the elastic body 30 may be composed of an elastomer, a high elastic body, a high viscoelastic body, and deforms when an external force is applied, and when the external force is removed, the elastic body 30 has a property of returning to its original shape to safely secure a high weight LNG storage tank 10a. You can support it.

상기 단열재(31)는 폴리우레탄폼이나 에어로겔 등으로 구성되어 LNG 저장탱크(10a)의 온도 손실을 최대한 줄여주게 된다.The heat insulating material 31 is composed of polyurethane foam or aerogel to reduce the temperature loss of the LNG storage tank (10a) as much as possible.

이와 같이 구성되는 본 발명은 LNG 저장탱크(10a)가 베이스부(40)에 탑재되면 탄성체가 압축되면서 LNG 저장탱크(10a)를 받쳐 지지해주게 되고, LNG 저장탱크(10a) 내부에 LNG가 채워지게 되면 LNG의 온도에 의해 LNG 저장탱크(10a)가 수축하게 되고, 이로 인해 탄성체(30)가 LNG 저장탱크(10a) 방향으로 이완되면서 단열재(31)가 LNG 저장탱크(10a)를 감싸면서 베이스부(40)의 내부에 LNG 저장탱크(10a)가 고정되는 것이다.According to the present invention configured as described above, when the LNG storage tank 10a is mounted on the base portion 40, the elastic body is compressed to support the LNG storage tank 10a while supporting the LNG storage tank 10a, and the LNG is filled in the LNG storage tank 10a. When the LNG storage tank (10a) is contracted by the temperature of the LNG, the elastic material 30 is relaxed in the direction of the LNG storage tank (10a) as a result of the insulation 31 wraps around the LNG storage tank (10a) base portion The LNG storage tank 10a is fixed inside the 40.

이때 탄성체(30)의 하부는 LNG 저장탱크(10a)와 LNG의 무게에 의해 압축상태를 유지하고 양측면이 이완되면서 단열재(31)가 LNG 저장탱크(10a)의 측면을 감싸면서 LNG 저장탱크(10a)를 베이스부의 내부에 고정되도록 하는 것이다.At this time, the lower portion of the elastic body 30 is maintained in a compressed state by the weight of the LNG storage tank (10a) and LNG, while both sides are relaxed, the insulation 31 wraps the side of the LNG storage tank (10a) LNG storage tank (10a) ) Is to be fixed inside the base part.

이와 같이 구성되는 본 발명은 LNG 저장용량을 증대시킬 수 있도록 수평방향으로 연장되도록 형성되는 수평연장 LNG 저장탱크(10b)에 대해서도 적용이 가능하다. 이를 도 5, 6, 7, 8을 통해 설명하면 도면에서와 같이 좌, 우 서로 대칭되고 반구형태로 형성되는 제1탱크부(11) 및 제2탱크부(12)와, 상기 제1,2탱크부(11)(12)의 사이에 설치되어 LNG저장용량이 증대되도록 하는 수평연장탱크부(13)로 이루어진 수평연장 LNG 저장탱크(10b)가 설치될 수 있도록 선체상에 오목하게 형성되는 베이스부(40)와, 상기 베이스부(40)의 내주면에 설치되어 베이스부(40)에 설치되는 수평연장 LNG 저장탱크(10b)의 수축에 따라 이완되면서 수평연장 LNG 저장탱크(10b)의 유동을 방지하고 지지해주는 탄성체(30)와, 상기 탄성체(30)상에 형성되고 수평연장 LNG 저장탱크(10b)의 외주면에 닿아 수평연장 LNG 저장탱크(10b)를 단열시켜주는 단열재(31)를 포함하여 구성된다.The present invention configured as described above is also applicable to the horizontally extended LNG storage tank (10b) is formed to extend in the horizontal direction to increase the LNG storage capacity. 5, 6, 7 and 8, the first tank part 11 and the second tank part 12 and the first tank part 11 and the second tank part 12 are symmetrical to each other and are formed in a hemispherical shape as shown in the drawing. A base which is formed between the tanks 11 and 12 and is concave on the hull so that the horizontally extended LNG storage tank 10b consisting of the horizontally extended tank 13 is installed to increase the LNG storage capacity. The flow of the horizontally extended LNG storage tank (10b) while relaxing in accordance with the contraction of the portion 40 and the horizontally extended LNG storage tank (10b) is installed on the inner peripheral surface of the base portion (40) is installed on the base portion (40) It includes an elastic body 30 to prevent and support, and an insulating material 31 formed on the elastic body 30 and in contact with the outer peripheral surface of the horizontal extension LNG storage tank (10b) to insulate the horizontal extension LNG storage tank (10b). It is composed.

본 발명은 상기와 같이 탄성체(30)와 단열재(31)를 통해 수평연장 LNG 저장탱크(10b)를 베이스부(40)의 내부에 면 접촉되어 직접적으로 지지해줌으로써 종래와 같이 지지스커트를 설치했을 경우에 비해 제1,2탱크부(11)(12)와 수평연장탱크부(13)의 연결부분에 응력집중현상이 완화되어 수평연장탱크부(13)의 두께를 과도하게 증가시킬 필요가 없어 자재비를 절감하여 생산원가를 줄여줄 수 있게 된다.The present invention is to support the horizontally extended LNG storage tank (10b) by directly contacting the inside of the base portion 40 through the elastic body 30 and the heat insulating material 31 as described above to install the support skirt as in the prior art Compared to the case, stress concentration is alleviated at the connection portion between the first and second tanks 11 and 12 and the horizontal extension tank 13, so that the thickness of the horizontal extension tank 13 is not necessary to be excessively increased. The cost of materials can be reduced by reducing material costs.

상기 탄성체(30)는 수평연장 LNG 저장탱크(10b)를 안전하게 지지할 수 있는 두께로 형성하고, 상기 단열재(31)는 수평연장 LNG 저장탱크(10b)의 반경보다 작게 형성하여 수평연장 LNG 저장탱크(10b)가 탄성체(30)의 수축에 의해 베이스부(40)에 억지끼움형태로 설치되도록 한다.The elastic body 30 is formed to a thickness that can safely support the horizontally extending LNG storage tank (10b), the heat insulating material 31 is formed smaller than the radius of the horizontally extending LNG storage tank (10b) horizontally extending LNG storage tank 10b is to be installed in the interference fit form in the base portion 40 by the contraction of the elastic body 30.

한편 도 6, 7, 8을 통해 수평연장 LNG 저장탱크(10b)의 설치 및 거동 과정을 살펴보면, 내부면에 탄성체(30)와 단열재(31)가 설치되어 있는 베이스부(40)에 수평연장 LNG 저장탱크(10b)를 설치한다.On the other hand, the installation and behavior of the horizontally extending LNG storage tank (10b) through Figures 6, 7, 8, the horizontally extending LNG in the base portion 40 is provided with an elastic body 30 and the heat insulating material 31 on the inner surface Install the storage tank 10b.

이때 단열재(31)의 반경은 수평연장 LNG 저장탱크(10b)의 반경보다 작게 형성되어 수평연장 LNG 저장탱크(10b)가 설치될 경우 탄성체(30)가 압축되면서 수평연장 LNG 저장탱크(10b)가 베이스부에 끼움결합형태로 설치된다.At this time, the radius of the insulation 31 is formed smaller than the radius of the horizontally extended LNG storage tank (10b), when the horizontally extended LNG storage tank (10b) is installed, the elastic body 30 is compressed and the horizontally extended LNG storage tank (10b) is It is installed in the form of fitting in the base part.

이후 수평연장 LNG 저장탱크(10b)에 LNG가 채워지면 온도에 의해 수평연장 LNG 저장탱크(10b)가 수축되고 이로 인해 탄성체(30)가 수평연장 LNG 저장탱크(10b) 방향으로 이완되면서 단열재(31)가 수평연장 LNG 저장탱크(10b)를 감싸면서 베이스부(40)의 내부에 수평연장 LNG 저장탱크(10b)가 고정되는 것이다.Thereafter, when LNG is filled in the horizontally extended LNG storage tank 10b, the horizontally extended LNG storage tank 10b is shrunk by temperature, and as a result, the elastic body 30 relaxes in the direction of the horizontally extended LNG storage tank 10b, thereby insulating the material 31. The horizontal extension LNG storage tank 10b is fixed to the inside of the base portion 40 while wrapping the horizontal extension LNG storage tank 10b.

이때 탄성체(30)의 하부는 수평연장 LNG 저장탱크(10b)와 LNG의 무게에 의해 압축상태를 유지하고 양측면이 이완되면서 단열재(31)가 수평연장 LNG 저장탱크(10b)의 측면을 감싸면서 수평연장 LNG 저장탱크(10b)를 베이스부의 내부에 고정되도록 하는 것이다.At this time, the lower portion of the elastic body 30 maintains the compressed state by the weight of the horizontally extended LNG storage tank (10b) and LNG, and both sides are relaxed, while the heat insulating material (31) surrounds the side of the horizontally extended LNG storage tank (10b) horizontally The extension LNG storage tank (10b) is to be fixed to the inside of the base portion.

이와 같은 본 발명은 수평연장 LNG 저장탱크(10b)의 수축 및 팽창시 탄성체(30)가 유연하게 대응하면서 수평연장 LNG 저장탱크(10b)를 감싸 베이스부(40)에 내부에 고정시켜 줌으로써 수평연장 LNG 저장탱크(10b)의 운동을 방지하고 안정적으로 지지해주게 된다.In the present invention as described above, the elastic body 30 flexibly responds to the horizontal extension LNG storage tank 10b when the horizontal extension LNG storage tank 10b is contracted and expanded, and is horizontally extended by fixing the inside of the horizontal portion LNG storage tank 10b. The movement of the LNG storage tank 10b is prevented and supported stably.

또한 탄성체(30) 및 단열재(31)를 통해 수평연장 LNG 저장탱크(10b)의 외면을 전체적으로 받쳐 지지해줌으로써 수평연결탱크부(13)와 제1,2탱크부(11)(12)의 접합부분에 가해지는 응력집중현상을 완화시켜 수평연장탱크부(13)의 두께를 줄여줄 수 있게 되는 것이다.In addition, the horizontal connection tank 13 and the first and second tanks 11 and 12 are joined by supporting the entire outer surface of the horizontally extended LNG storage tank 10b through the elastic body 30 and the heat insulator 31. By reducing the stress concentration applied to the portion will be able to reduce the thickness of the horizontal extension tank (13).

본 발명은 상술한 특정의 바람직한 실시 예에 한정되지 아니하며, 청구범위에서 청구하는 본 발명의 요지를 벗어남이 없이 당해 발명이 속하는 기술분야에서 통상의 지식을 가진 자라면 누구든지 다양한 변형실시가 가능한 것은 물론이고, 그와 같은 변경은 청구범위 기재의 범위 내에 있게 된다.The present invention is not limited to the above-described specific preferred embodiments, and various modifications can be made by any person having ordinary skill in the art without departing from the gist of the present invention claimed in the claims. Of course, such changes will fall within the scope of the claims.

도 1 은 종래의 LNG 저장탱크를 나타낸 예시도,1 is an exemplary view showing a conventional LNG storage tank,

도 2 는 종래의 수평연장 LNG 저장탱크를 나타낸 예시도,2 is an exemplary view showing a conventional horizontally extended LNG storage tank,

도 3 은 본 발명에 의한 LNG 저장탱크의 탑재 전 상태를 나타낸 예시도,3 is an exemplary view showing a state before mounting an LNG storage tank according to the present invention;

도 4 는 본 발명에 의한 LNG 저장탱크의 탑재 상태를 나타낸 예시도,4 is an exemplary view showing a mounted state of the LNG storage tank according to the present invention,

도 5 는 본 발명의 다른 실시예에 의한 수평연장 LNG 저장탱크의 선박 탑재 상태를 나타낸 예시도,5 is an exemplary view showing a ship mounted state of a horizontally extended LNG storage tank according to another embodiment of the present invention,

도 6 은 본 발명의 다른 실시예에 의한 수평연장 LNG 저장탱크의 베이스부 탑재 과정을 나타낸 예시도,6 is an exemplary view showing a base portion mounting process of the horizontal extended LNG storage tank according to another embodiment of the present invention,

도 7 은 본 발명의 다른 실시예에 의한 수평연장 LNG 저장탱크의 탑재 상태를 나타낸 예시도,7 is an exemplary view showing a mounted state of a horizontally extended LNG storage tank according to another embodiment of the present invention,

도 8 은 본 발의 다른 실시예에 의한 수평연장 LNG 저장탱크의 탑재 후 수축작용에 따른 고정상태를 나타낸 예시도로서,8 is an exemplary view showing a fixed state according to the shrinkage action after mounting the horizontally extended LNG storage tank according to another embodiment of the present invention,

<도면의 주요부분에 대한 부호의 설명><Description of the symbols for the main parts of the drawings>

(10a) : LNG 저장탱크 (10b) : 수평연장 LNG 저장탱크(10a): LNG storage tank (10b): Horizontally extended LNG storage tank

(11) : 제1탱크부 (12) : 제2탱크부(11): first tank part (12): second tank part

(13) : 수평연장탱크부 (20) : 지지스커트(13) Horizontal tank section (20): Support skirt

(30) : 탄성체 (31) : 단열재30: elastic body 31: heat insulating material

(40) : 베이스부 40: base portion

Claims (3)

LNG 저장탱크가 설치될 수 있도록 선체상에 오목하게 형성되는 베이스부;A base portion recessed on the hull so that the LNG storage tank can be installed; 상기 베이스부의 내주면에 설치되어 베이스부에 탑재되는 LNG 저장탱크의 수축에 따라 이완되면서 LNG 저장탱크의 유동을 방지하고 지지해주는 탄성체;An elastic body installed on the inner circumferential surface of the base part and relaxed according to the contraction of the LNG storage tank mounted on the base part to prevent and support the flow of the LNG storage tank; 상기 탄성체상에 형성되고 LNG 저장탱크의 외주면에 닿아 LNG 저장탱크를 단열시켜주는 단열재; 를 포함하여 구성되는 것을 특징으로 하는 탄성체와 단열재를 이용한 LNG 저장탱크의 지지구조체.An insulating material formed on the elastic body and insulating the LNG storage tank by contacting an outer circumferential surface of the LNG storage tank; The support structure of the LNG storage tank using an elastic body and a heat insulating material, characterized in that comprising a. 제 1 항에 있어서,The method of claim 1, 상기 단열재의 반경은 상기 LNG 저장탱크의 반경보다 작게 형성하여 LNG 저장탱크가 탄성체의 수축에 의해 베이스부에 억지끼움형태로 설치되는 것을 특징으로 하는 탄성체와 단열재를 이용한 LNG 저장탱크의 지지구조체.The radius of the heat insulating material is formed smaller than the radius of the LNG storage tank, the LNG storage tank supporting structure of the LNG storage tank using an elastic body and the heat insulating material, characterized in that the installation of the LNG storage tank in the form of interference fit in the base portion. 제 1 항에 있어서,The method of claim 1, 상기 탄성체는, 탄성중합체, 고탄성체, 고점탄성체 중 선택된 어느 하나인 것을 특징으로 하는 탄성체와 단열재를 이용한 LNG 저장탱크의 지지구조체.The elastic body, the support structure of the LNG storage tank using the elastic body and the heat insulating material, characterized in that any one selected from an elastomer, a high elastic body, a high viscoelastic body.
KR1020090128766A 2009-12-22 2009-12-22 Lng storage tank supporting structure using insulation and elastic body KR20110072008A (en)

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CN103587650A (en) * 2013-10-30 2014-02-19 惠生（南通）重工有限公司 Fixing base for ultralow-temperature device
KR20150126169A (en) 2014-05-02 2015-11-11 삼성중공업 주식회사 Heat insulation storage tank

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CN102706525B (en) * 2012-05-07 2014-07-30 中国寰球工程公司 Method for determining shock-isolation effects of LNG (liquefied natural gas) storage tank
CN106275282A (en) * 2015-05-18 2017-01-04 江南造船(集团)有限责任公司 C-type flow container supporting structure on liquefied gas carrier deck
ITUB20159685A1 (en) * 2015-12-18 2017-06-18 Fincantieri Oil & Gas S P A MULTIPLE CONTAINMENT UNITS FOR COMPRESSED GAS CYLINDERS AND NAVAL UNITS FOR GAS COMPRESSED TRANSPORT WITH SUCH UNITS
CN110254641A (en) * 2019-07-01 2019-09-20 上海外高桥造船有限公司 A kind of independent flow container support device

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GB1152153A (en) * 1968-02-17 1969-05-14 Buss Ag Spherical Storage Tank for Gases and Liquids and Supporting Base therefor
CH682558A5 (en) * 1992-01-28 1993-10-15 Buss Ag Mounting for spherical gas- or fluid-tank - has intermediate supporting layer with elastomer characteristics forming cushion between tank and foundation and joined to both

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103587650A (en) * 2013-10-30 2014-02-19 惠生（南通）重工有限公司 Fixing base for ultralow-temperature device
KR20150126169A (en) 2014-05-02 2015-11-11 삼성중공업 주식회사 Heat insulation storage tank

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